/Engine/Source/Runtime/RHI/Public/RHICommandList.h
FRHICommandDrawIndexedPrimitive ( [FRHIBuffer](API\Runtime\RHI\FRHIBuffer) * InIndexBuffer, int32 InBaseVertexIndex, uint32 InFirstInstance, uint32 InNumVertices, uint32 InStartIndex, uint32 InNumPrimitives, uint32 InNumInstances )